SYNTHESIS OF SILVER NANOPARTICLES FUNCTIONALIZED WITH AQUEOUS EXTRACT (Burseragraveolens) AND ANTIMICROBIAL EVALUATION IN Escherichia coli, Staphylococcus aureus AND Klebsiellapneumoniae
Journal Title: Periódico Tchê Química - Year 2017, Vol 14, Issue 27
Abstract
Currently, resistance to antibiotics has become a problem for the treatment of infectious diseases. In this study, silver nanoparticles were synthesized using the aqueous extract of Palo santo (Burseragraveolens), for its biocide action, in order to determine its antimicrobial effect on Escherichia coli and Staphylococcus aureus. Different concentrations of nanoparticles (100 until1000 ppm) were evaluated at contact times of 1, 2, 5 and 10 minutes for 1500 and 15000 CFU/mL. Additionally, to determine effectiveness, disc diffusion tests using various concentrations of nanoparticles (500-1000 ppm) were performed on S.aureus and K. pneumoniae. According to the results of antimicrobial effect for E.coli, the effectiveness of nanoparticles can be established at all contact times for 1500 CFU from 800 ppm and for 15000 CFU from 400 ppm. With S.aureus, total inhibition was showed from 800 ppm in 1500 CFU at 5 minutes of contact and between 500-1000 ppm with 15000 CFU at minute one. S. aureus and K.pneumoniae tests showed sensitivity with nanoparticles. The average of susceptibility for S.aureus had the lowest inhibition between 500-600 ppm and the highest at 700-800 ppm. The average susceptibility for K. pneumoniae is more constant in terms of inhibition at 600-1000 ppm. This study demonstrated the antimicrobial effect of silver nanoparticles synthesized under the specified conditions.
Authors and Affiliations
Fernanda PILAQUINGA
Keywords
Related Articles
- EP ID EP252164
- DOI -
- Views 290
- Downloads 0
MATHEMATICAL MODELING OF THE DYNAMICS OF NONEQUILIBRIUM ISOTHERMAL ADSORPTION OF CARBON DIOXIDE
An adequate mathematical model of the dynamics of the nonequilibrium isothermal adsorption of carbon dioxide in the absorption cartridge of the model installation for the regeneration of the atmosphere of autonomous obje...
PALEOFACIAL CHARACTERISTIC OF UPPER PART OF THE POKURSK SUITE WITHIN THE PURSKY DEFLECTION
In recent decades, there is a tendency of increasing the share of deposits of hydrocarbons, characterized by a complex geological structure. Solving geological problems for this type of geo object requires a comprehensiv...
CHARACTERISATION OF VOLATILE AND SEMI-VOLATILE COMPOUNDS OF OILS FROM Solanum lycocarpum FRUITS BY GAS CHROMATOGRAPHY-MASS SPECTROMETRY
Oils were obtained from unripe and ripe fruits of Solanum lycocarpum. In this study, the volatile and semi-volatile compounds of oils were characterized by gas chromatography-mass spectrometry (GC-MS). Oil of unripe frui...
PROPOSAL FOR SIZING A WATER SUPPLY SYSTEM FOR ALGODOAL DISTRICT IN ABAETETUBA CITY - PARÁ
Water is a natural resource indispensable to the life of every human being. However, supply issues may cause lack of water in some localities. Thus, the objective of this paper was to carry out a new proposal for the siz...
albumin nanoparticles: an interesting alternative for the controlled release of drugs
Nanotechnology presents a tool, which controls the nanoscale matter to change its physico chemical properties. The Nanotechnology application is varied, observing an increase in the pharmaceutical area. There are several...